Strabismus causes and types Contents
What is amblyopia?
Strabismus can be defined as a condition that makes the eyes inconsistent when moving in different directions. When one eye looks at an object in front of it, the other eye does not agree with it in vision, and that is either inward or outward according to the direction of the deviated eye.
When can the symptoms of amblyopia be detected or noticed?
The age period from 3 months to 4 years is the period in which the eye is developed to carry out its function and it is normal for a physiological deviation in the first six months of birth, which disappears after that.
And as soon as I continue after that, it indicates the presence of a defect in the eye muscles or the presence of an injury in the brain, which is responsible for moving the eye muscles, and at that time, the vision is always deviated.
Is the child born with strabismus? Or does he get it later? Is there a difference in the two cases during treatment?
A child can be born with strabismus in some cases, and this can appear during the first months after birth, and most of these cases require surgical intervention, and strabismus can appear during the first years of a child’s life, and most of these cases can be treated by wearing medical glasses Occasion.
How can squint be detected in a child?
This can be done by observing the direction of the child’s eye when looking at a certain thing, it is noticed that one of the eyes is looking at the thing to be seen while the other is deviated inward or outward, and the squint can also be observed when the eye moves, and it shows a deficiency in its movement in a certain direction, and this calls for showing the child to the specialist doctor for quick diagnosis
Causes of amblyopia
Most of these cases have no clear or specific causes, but there are some factors that contribute to its development, such as:
Some syndromes of birth defects of Mongolian children.
The genetic factor in the family also plays a major role in many cases.
The presence of organic diseases in other parts of the eye, such as retinal diseases or cataracts.
It may occur after some types of surgeries for the treatment of long-sightedness or short-sightedness.
Some cases of low vision, which are left for a long time without correction, cause deviation of sight.
Some direct injuries to the eye or eye muscles during or after childbirth.
Interpretation of the occurrence of amblyopia
The so-called double image occurs, and the person with deviation sees two different images, as one of the eyes looks at the object to be seen in a straight direction and the other deviates in a direction up, down, inward or outward. The affected person’s brain begins to ignore one of these two images and loses vision in both eyes.
It also loses its ability to distinguish the distance or proximity of objects.
Because it is normal for the eyes to look at an object in one direction, and the brain has one three-dimensional image. Therefore, when you ignore one of the two images occurs lazy eye.
squint pictures
Persistent strabismus that appears at all times and is outwardly noticeable.
Intermittent strabismus, which appears at times and disappears at other times.
The hidden type of strabismus also, which appears only during a medical examination of the eye or with fatigue, and can also be divided according to the direction of the deviation of the eye.
The acquired type that some may suffer in old age as a result of poor vision in one or both eyes.
Types of strabismus
Medial or internal strabismus
It is a strabismus resulting from the deviation of the eye inward. It is the common type of strabismus in children, and children with internal strabismus do not use their eyes together
Early surgery is usually necessary to reposition the eye. During surgery, the doctor adjusts the tension on the muscles of one or both eyes.
Where the doctor moves the point where the inner muscle meets the outer wall of the eye to the back of the eye
. This adjustment reduces the attraction of the eye inward and allows it to move more freely outward.
Another way is to shorten the external muscle to allow the eye to move outward.
Adaptive amblyopia
This type of strabismus is spread among children with farsightedness at the age of two years or more, when the child is young and has farsightedness.
His attempt to focus his eyes on nearby objects leads to internal squint.
Eyeglasses help remove the burden of focusing on objects close to the eye.
This causes the eyes to return to their normal position, and special eye drops and ointments or prism lenses help to correct the position of the eye.
Lateral or external strabismus
It is a strabismus resulting from the deviation of the eye outward. It appears when the child strains his eyes in an attempt to focus his eyes on distant objects.
And the lateral strabismus appears only from time to time, especially when the child is stray, tired or sick.
How often the child’s parents may notice that one of his eyes deviates outward when facing bright sunlight.
Although eyeglasses or prisms with eye exercises may help correct the position of the eye, surgery may be necessary.
How is strabismus diagnosed by an ophthalmologist?
The doctor examines the eye to determine whether the deviation is true or false. This appears when the patient is asked to look at a certain point and note the direction of eye movement.
Once the movement of the eyes is sound and equal, this indicates that it is a false deviation of vision and this may be due to the widening or narrowing of the eye opening, but it is not a true strabismus.
But if the movement of the eyes or one of them is improper, the doctor performs examinations and other tests of the eye to make sure that the existing deviation is the only symptom in the eye and there are no other symptoms accompanying it in the rest of the eye.
Once it is confirmed that there are no other accompanying symptoms, the type and degree of deviation is determined.
Complications of strabismus when diagnosis and treatment is delayed
Atrophy or lazy eye.
double vision
Timing of the neck toward the tilted position to maintain a single image view.
Affect the outer aesthetic shape of the face and eyes.
Deviation of sight may be a symptom of eye tumors, which delay treatment leads to death or blindness.
Methods